Ok. So I screwed wonderbord to my cedar front porch post and skim coated with type s mortar. I then buttered the back of the same stones i just finished using on the walls of my porch and now they don't want to stick.What gives?I did this 24 hours later and the base skim coat is dry.Is there some adhesive i can use / add to the mortar? via /r/DIY http://ift.tt/2vhiLDw
